PLATE, XI 



TOPOGRAPHICAL MAP 



IROK RIDGE MIXIXO PROPERTY 

 Chiefty fro/n (tftta 



Snpt ."W: C. 



1873. 



^ / irtfft.. 

 Contour Iirtes5 ft .apart i-frticrr//i/ 



Tr MII.WA..KK,.. l.mi,,..\Kv.. 



